Need 7 1/4 Differential

Hi 1 I've got the original under my 68 dart with 3.21 open . I'm installing a 75 , 8 1/4 so it's probably just right for you ! I just put new rt. hand studs in. brakes,seals, bearings all in excellent cond. pm me and let me know. I'm 45 min. north of sacramento.